Product Name: Calcium Chloride Desiccant
Chemical Name: Calcium Chloride
Synonyms: Calcium Dichloride, Dihydrate Calcium Chloride
CAS Number: 10043-52-4 (Anhydrous), 10035-04-8 (Dihydrate)
Recommended Use: Moisture absorber, drying agent, desiccant for packaging
Supplier Details: Name, address, and contact number provided by manufacturer
Emergency Contact: Refer to supplier’s 24-hour emergency number listed on packaging
Relevant Identified Uses: Used in food processing, laboratory, pharmaceuticals, construction, road maintenance, and packaging sectors where product must remain dry
GHS Classification: Eye Irritation Category 2A, Skin Irritation Category 2, Specific Target Organ Toxicity (Single Exposure) Category 3
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, may cause skin irritation, can lead to respiratory tract irritation upon inhalation of dust
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust. Wear protective gloves and eye protection. Wash exposed skin thoroughly after handling. Use only outdoors or in well-ventilated areas. Seek medical attention if symptoms persist.
Potential Health Effects: Eye, skin, and respiratory tract irritation especially after prolonged exposure or direct contact with powder or solution
Environmental Impact: High concentrations in water bodies may harm aquatic life by altering salinity
Substance: Calcium Chloride
Chemical Formula: CaCl2
Purity: Typically 90–99%
Other Components: May contain trace amounts of magnesium chloride, sodium chloride, and water (in hydrated forms)
Hazardous Components: None above reportable thresholds for industrial regulatory frameworks
Impurities: No known hazardous impurities present in typical commercial product
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek immediate medical attention if irritation persists.
Skin Contact: Wash skin with plenty of soap and water. Remove contaminated clothing and wash thoroughly before reuse. See a healthcare professional if redness or irritation develops.
Inhalation: Move person to fresh air and keep comfortable for breathing. Seek medical advice if symptoms like coughing or throat irritation occur.
Ingestion: Rinse mouth thoroughly. Do not induce vomiting unless directed by medical personnel. Drink water to dilute the substance. Call poison center or doctor if unwell.
Most Important Symptoms: Severe eye irritation, redness, burning sensation, coughing, difficulty breathing if large amounts are inhaled
Suitable Extinguishing Media: Use water spray, dry chemical, or carbon dioxide for extinguishing surrounding fire. Calcium chloride itself is not combustible.
Special Hazards: Product decomposes at high temperature, releasing hydrogen chloride fumes which are irritating and potentially corrosive. Avoid inhaling smoke.
Protective Equipment: Firefighters need to wear self-contained breathing apparatus and protective clothing in sealed environments.
Unusual Hazards: In contact with water, heat may be generated due to exothermic reaction. Avoid direct addition of large quantities of water to bulk product.
Advice for Firefighters: Prevent runoff from contamination of surface waters and drains
Personal Precautions: Wear approved goggles, gloves, and dust mask or respirator to prevent eye, skin, and respiratory exposure.
Environmental Precautions: Prevent significant discharge into waterways since dissolved calcium chloride alters water hardness and salinity. Avoid spreading the product into drains or natural waterways.
Clean-up Methods: For small amounts, sweep up and transfer to a suitable container for disposal or re-use. For larger spills, use non-sparking, dry clean-up tools. Wash spill area thoroughly with water to remove residues.
Disposal Recommendations: Place contaminated or used materials in labeled, sealed bags or bins for proper disposal per local environmental regulations
Safe Handling: Minimize dust generation and accumulation. Handle in a well-ventilated area. Wash hands and face after handling, especially before eating or drinking.
Storage Conditions: Keep in tightly closed, moisture-resistant containers. Store in a cool, dry, well-ventilated location, away from incompatibles like strong acids.
Incompatibilities: Avoid direct contact with strong acids, zinc, and oxidizers.
Special Precautions: Protect from atmospheric moisture as product is hygroscopic and will absorb water which can create heat and slippery surfaces.
Shelf Life: Stable under recommended conditions for several years if kept tightly sealed
Exposure Limits: No established occupational exposure limits for calcium chloride. Use general dust exposure limits as guidance (for total dust, typically 10 mg/m³ TWA).
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure guidelines.
Respiratory Protection: Use dust mask or approved particulate respirator in poorly ventilated areas or if dust concentrations exceed limits.
Eye Protection: Wear chemical safety goggles or face shield.
Skin Protection: Wear chemical-resistant gloves and long-sleeve clothing.
Hygiene Practices: Provide washing facilities in work areas. Wash thoroughly after handling and before eating or drinking
Appearance: White granular, powder, pellets or flakes
Odor: Odorless
Odor Threshold: Not applicable
pH: 8–10 (10% aqueous solution)
Melting Point: 772°C (anhydrous), 176°C (dihydrate breakdown)
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (nonflammable)
Evaporation Rate: Not applicable
Flammability: Not flammable
Vapor Density: Not applicable
Density: 2.15 g/cm³ (anhydrous)
Solubility in Water: Highly soluble (up to 74.5g/100ml at 20°C)
Partition Coefficient: Not available
Auto-ignition Temperature: Not applicable
Decomposition Temperature: Above 160°C
Viscosity: Not applicable
Chemical Stability: Stable under normal temperatures and pressures provided it is kept dry and away from incompatibles.
Conditions to Avoid: Excess moisture or water, high humidity, temperatures that induce decomposition, and prolonged exposure to acidic environments.
Incompatible Materials: Reacts with strong acids to release hydrogen chloride gas, reacts with water with heating effect.
Hazardous Decomposition Products: Hydrogen chloride gas and calcium oxide upon decomposition.
Polymerization: Will not occur
Routes of Exposure: Skin and eye contact, inhalation of dust, ingestion
Acute Toxicity: Oral rat LD50 1000–4000 mg/kg, considered relatively low toxicity
Skin Corrosion/Irritation: Can cause irritation, redness, and discomfort upon contact
Eye Damage/Irritation: Causes significant irritation or burns if particles or solution enter eyes
Respiratory Effects: Short-term inhalation may result in coughing, sore throat, and difficulty breathing if considerable amounts of dust are present
Chronic Effects: Prolonged or repeated exposure may worsen dermatitis or pre-existing respiratory conditions
Sensitization: Not classified as a skin sensitizer
Carcinogenicity, Mutagenicity, Reproductive Toxicity: No evidence for carcinogenicity or reproductive/developmental toxicity from available studies
Aquatic Toxicity: Large releases cause acute toxicity to freshwater life and plants by elevating salinity and ionic strength
Persistence/Degradability: Product is inorganic and persists in the environment, but breaks down by dilution and natural precipitation
Bioaccumulation: Not likely to bioaccumulate in living organisms
Soil Mobility: High; product readily disperses and dissolves in moist soils, potentially altering soil structure and vegetation tolerance
Other Adverse Effects: Run-off from storage or application sites may damage sensitive plants, freshwater fish, and invertebrates by raising salinity and potentially causing osmotic stress
Waste Treatment Methods: Avoid release to the environment. Reuse or recycle product wherever possible for other de-icing or drying purposes.
Disposal of Product: Dispose of in accordance with local, regional, and national regulations, usually at an approved landfill or hazardous waste facility.
Disposal of Packaging: Clean containers thoroughly before disposal or recycling. Avoid contaminating natural water sources with rinsate.
Environmental Precautions: Prevent large concentrated discharges into surface waters or municipal sewers to avoid ecological harm
UN Number: Not classified as a hazardous material for transportation
Transport Hazard Class: Not regulated by international or domestic transport standards (ADR/RID/IMDG/IATA/DOT)
Packing Group: Not applicable
Special Precautions: Ensure product remains dry and containers are tightly sealed during transit. Avoid loading with incompatible chemicals such as strong acids.
Labels: Not specifically required under dangerous goods regulations but include standard handling warnings
Safety, Health, and Environmental Regulations: Product is listed on major chemical inventories such as TSCA (US), EINECS/ELINCS (EU), DSL/NDSL (Canada), AICS (Australia), among others.
OSHA Status: Not classified as hazardous under OSHA HazCom Standard, though workplace dust regulations apply
SARA Title III Sections 311/312: May be subject to reporting due to acute health hazard classification
REACH Status: Registered for use and notification not required for standard industrial handling levels
California Prop 65: Not listed as a substance known to cause cancer or reproductive toxicity
Workplace Safety: Adhere to local regulations regarding employee safety practices and personal protection
Environmental Regulations: Prevent large releases to environment, comply with national pollution control laws, manage waste streams responsibly
